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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.keyguard;
import android.view.View;
interface BiometricSensorUnlock {
/**
* Initializes the view provided for the biometric unlock UI to work within. The provided area
* completely covers the backup unlock mechanism.
* @param biometricUnlockView View provided for the biometric unlock UI.
*/
public void initializeView(View biometricUnlockView);
/**
* Indicates whether the biometric unlock is running. Before
* {@link BiometricSensorUnlock#start} is called, isRunning() returns false. After a successful
* call to {@link BiometricSensorUnlock#start}, isRunning() returns true until the biometric
* unlock completes, {@link BiometricSensorUnlock#stop} has been called, or an error has
* forced the biometric unlock to stop.
* @return whether the biometric unlock is currently running.
*/
public boolean isRunning();
/**
* Stops and removes the biometric unlock and shows the backup unlock
*/
public void stopAndShowBackup();
/**
* Binds to the biometric unlock service and starts the unlock procedure. Called on the UI
* thread.
* @return false if it can't be started or the backup should be used.
*/
public boolean start();
/**
* Stops the biometric unlock procedure and unbinds from the service. Called on the UI thread.
* @return whether the biometric unlock was running when called.
*/
public boolean stop();
/**
* Cleans up any resources used by the biometric unlock.
*/
public void cleanUp();
/**
* Gets the Device Policy Manager quality of the biometric unlock sensor
* (e.g., PASSWORD_QUALITY_BIOMETRIC_WEAK).
* @return biometric unlock sensor quality, as defined by Device Policy Manager.
*/
public int getQuality();
}
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